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| author | Alexander Schmidt <alexs@linux.vnet.ibm.com> | 2007-07-10 17:53:54 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-07-10 21:00:43 +0300 |
| commit | 0d62e6a7338d8f25727f56ca14236954fc8f2cef (patch) | |
| tree | 767442d91fe044f6671cf618b3f08165f171fef0 /ubi-utils/src/bootenv.h | |
| parent | 8496f75b4897056a1423e30a41649dbc11b421d4 (diff) | |
UBI-utils: add compare feature
This is a new feature for pfiflash, called "--compare". It allows the user
to simulate a pfiflash session without actually changing the flash
content. If the flash content is equal to the data in the pfif file,
pfiflash returns zero. A positive value is returned when the flash
content differs from the pfi file, which indicates that an update is
necessary. This feature is useful when a controller mounts an NFS share
during boot and has to determine if a pfi file stored on this share
contains a code update. Modified PDD values are also registered by the
compare feature.
Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Diffstat (limited to 'ubi-utils/src/bootenv.h')
| -rw-r--r-- | ubi-utils/src/bootenv.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/ubi-utils/src/bootenv.h b/ubi-utils/src/bootenv.h index 9003d70..8fecdbf 100644 --- a/ubi-utils/src/bootenv.h +++ b/ubi-utils/src/bootenv.h @@ -268,6 +268,16 @@ int bootenv_write_crc(FILE* fp, bootenv_t env, uint32_t* ret_crc); int bootenv_write_txt(FILE* fp, bootenv_t env); /** + * @brief Compare bootenvs using memcmp(). + * @param first First bootenv. + * @param second Second bootenv. + * @return 0 if bootenvs are equal + * @return < 0 if error + * @return > 0 if unequal + */ +int bootenv_compare(bootenv_t first, bootenv_t second); + +/** * @brief Prototype for a PDD handling funtion */ |